KR101894844B1 - 차량의 조향 토크 기반 험로 검출 시스템 - Google Patents
차량의 조향 토크 기반 험로 검출 시스템 Download PDFInfo
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- KR101894844B1 KR101894844B1 KR1020120158120A KR20120158120A KR101894844B1 KR 101894844 B1 KR101894844 B1 KR 101894844B1 KR 1020120158120 A KR1020120158120 A KR 1020120158120A KR 20120158120 A KR20120158120 A KR 20120158120A KR 101894844 B1 KR101894844 B1 KR 101894844B1
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- steering torque
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- 238000001514 detection method Methods 0.000 title claims description 17
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000004364 calculation method Methods 0.000 claims description 17
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 4
- 238000003745 diagnosis Methods 0.000 description 3
- 208000035278 mandibuloacral dysplasia progeroid syndrome Diseases 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000010183 spectrum analysis Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
- B60W40/02—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to ambient conditions
- B60W40/06—Road conditions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/20—Conjoint control of vehicle sub-units of different type or different function including control of steering systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D6/00—Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits
- B62D6/002—Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits computing target steering angles for front or rear wheels
- B62D6/006—Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits computing target steering angles for front or rear wheels using a measured or estimated road friction coefficient
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/20—Steering systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/20—Steering systems
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Automation & Control Theory (AREA)
- Steering Control In Accordance With Driving Conditions (AREA)
Abstract
Description
개별 샤시 시스템 | 엔진 | T/M | MDPS | CDC | ESC |
험로주행모드 |
Normal | No Change | Comport | Normal | Normal |
20: 조향토크 변화율 계산부
30: 험로 판단 기준값 계산부
40: 험로 판단 기준 Flag 판단부
50: 험로 진입 여부 판단부
60: 험로 탈출 여부 판단부
70: 최종 험로 Flag 판단부
Claims (4)
- 차량의 험로 검출 시스템에 있어서,
차량의 조향토크 센서의 출력을 수신하여 조향토크를 계측하는 조향토크센서 신호처리부;
상기 조향토크센서 신호처리부에서 계측된 조향토크의 단위시간당 변화율을 산출하는 조향토크 변화율 계산부;
차속에 대한 맵을 내삽(Interpolation)하여 현재 차속에 대한 상기 조향 토크의 변화율의 절대값들의 분포를 분석하여 그 중간값을 해당 차속에서의 험로 판단 기준값으로 결정하는 험로 판단 기준값 계산부;
상기 조향토크의 변화율과 상기 험로 판단 기준값을 비교하여 험로 판단 기준 Flag을 출력하는 험로 판단 기준 Flag 판단부; 및
험로 판단 기준 Flag를 통하여 험로 주행을 판단하는 최종 험로 Flag 판단부;를 포함하고,
ON타이머를 내장하고, 상기 ON타이머의 작동시간동안 상기 험로 판단 기준 Flag가 ON(또는 1)이 되는 횟수를 측정하는 험로 진입 여부 판단부를 더 포함하고,
상기 최종 험로 Flag 판단부는,
상기 험로 진입 여부 판단부가 측정한 험로 판단 기준 Flag가 ON(또는 1)이되는 횟수가 사전 설정된 기준값을 초과하면 험로에 진입한 것으로 간주하도록 이루어지는 것을 특징으로 하는 차량의 조향 토크 기반 험로 검출 시스템.
- 삭제
- 제 1항에 있어서,
OFF타이머를 내장하고, 상기 험로 판단 기준 Flag가 ON(또는 1)이 되면 상기 OFF타이머가 리셋되도록 이루어진 험로 탈출 여부 판단부; 를 더 포함하고,
상기 최종 험로 Flag 판단부는,
상기 OFF타이머가 사전 설정된 시간 이상 증가하면 험로를 탈출한 것으로 간주하도록 이루어지는 것을 특징으로 하는 차량의 조향 토크 기반 험로 검출 시스템.
- 제 1항에 있어서,
상기 조향토크 변화율 계산부는,
조향토크센서 신호처리부에서 계측된 조향토크의 단위시간당 변화율의 절대값을 산출하는 것을 특징으로 하는 차량의 조향 토크 기반 험로 검출 시스템.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020120158120A KR101894844B1 (ko) | 2012-12-31 | 2012-12-31 | 차량의 조향 토크 기반 험로 검출 시스템 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020120158120A KR101894844B1 (ko) | 2012-12-31 | 2012-12-31 | 차량의 조향 토크 기반 험로 검출 시스템 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20140087615A KR20140087615A (ko) | 2014-07-09 |
KR101894844B1 true KR101894844B1 (ko) | 2018-10-04 |
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KR1020120158120A Active KR101894844B1 (ko) | 2012-12-31 | 2012-12-31 | 차량의 조향 토크 기반 험로 검출 시스템 |
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KR (1) | KR101894844B1 (ko) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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KR101716417B1 (ko) | 2015-10-30 | 2017-03-15 | 현대위아(주) | 차량의 험로주행 판단방법 |
US20190308629A1 (en) * | 2018-04-06 | 2019-10-10 | GM Global Technology Operations LLC | Systems and methods for rough road detection |
CN111791879B (zh) * | 2020-05-15 | 2022-08-02 | 浙江吉利汽车研究院有限公司 | 车辆稳定行驶的控制方法、装置、电子设备及存储介质 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2009208608A (ja) * | 2008-03-04 | 2009-09-17 | Mitsubishi Electric Corp | 車両挙動検出装置 |
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Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2009208608A (ja) * | 2008-03-04 | 2009-09-17 | Mitsubishi Electric Corp | 車両挙動検出装置 |
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